/* Copyright 2021 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

// ARC Platform micro timer implementation.

// Use default timer of arc_timer API delivered with MetaWare toolkit.

#include "tensorflow/lite/micro/micro_time.h"

#include <arc/arc_timer.h>

#include <limits>

namespace tflite {

uint32_t ticks_per_second() {
  const unsigned long clocs_per_sec_real = _timer_clocks_per_sec();
  if (clocs_per_sec_real <
      static_cast<unsigned long>(std::numeric_limits<uint32_t>::max()))
    return static_cast<uint32_t>(clocs_per_sec_real);
  else
    return std::numeric_limits<uint32_t>::max();
}

uint32_t GetCurrentTimeTicks() {
  uint32_t ticks_real = _timer_default_read();
  return ticks_real;
}

}  // namespace tflite
